【you are not alone】小组提纲作业 Argument48

Luise8891UID: 2906459

48The following appeared in a newspaper article published in the country of Corpora.

"Twenty years ago, one half of all citizens in Corpora met the standards for adequate physical fitness as then defined by the national advisory board on physical fitness. Today, the board says that only one quarter of all citizens are adequately fit and suggests that spending too much time using computers may be the reason. But since overall fitness levels are highest in regions of Corpora where levels of computer ownership are also highest, it is clear that using computers has not made citizens less physically fit. Instead, as shown by this year's unusually low expenditures on fitness-related products and services, the recent decline in the economy is most likely the cause, and fitness levels will improve when the economy does."

ydycgwllUID: 2894737

1.The highest level in regions doesn't represent the average level of Corpora. The population of such regions is unkown,maybe it is only a small part of the whole population.
2.Lacks comparation. The arguer fails to take into account the past physical fitness level in such regions, may be it much more higher before computers come into widely use.
3.The unusually low expenditures is not neccessarily the result of the decline of the economy. there may other reasons, for example ,there may be oversufficient supplies and most local people might already have the fitness-related products. Addmited the local economy is in declination, there is no evidence to convince us that the major reason relate to the point.
to conclude, the arguer fails to rule out the possible casual relationship between the decrease of the physical fitness level and the increasing computerazation, on the other hand, he lacks sufficient evidence to prove that the delination in the economy resposible for the decreased fitness level.

刘文奇UID: 2850560

20年前，Corpora的市民有一半都达到了那时由国家健身顾问委员会所定义的充分的健康标准。今天，委员会指出所有市民只有四分之一的市民足够健康，并指出长时间的使用电脑可能是原因。但是由于在Corpora电脑拥有量最高的地区也是总体健康水平最高的地区，显然使用电脑并没有导致市民体质的下降。相反，今年用于健身产品和服务的花费低的异乎寻常，这表明最近经济的衰退最可能是原因，当经济复苏了健康水平也会随之提高。

1。二十年前一半，如今全国四分之一：没有比较，如今C市民如何
   总体健康水平最高：怎知没有下降
2．计算机拥有量与健康无关，有关的是使用时间：如果人均使用时间少，不能证明电脑对身体没危害。
3．花费低：很可能是忙于电脑；可能是今年产品不合格，服务质量差。复苏也不会提高
经济复苏会高：没表明，需要询问人们为什么消费低的真正原因
4．复苏消费会高也不代表身体会好：这些产品对健康是否有帮助不知道